3220228128 has 96 divisors (see below), whose sum is σ = 9638891136. Its totient is φ = 932548608.

The previous prime is 3220228097. The next prime is 3220228139. The reversal of 3220228128 is 8218220223.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 3220228095 and 3220228104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54676 + ... + 97107.

It is an arithmetic number, because the mean of its divisors is an integer number (100405116).

Almost surely, 2^3220228128 is an apocalyptic number.

It is an amenable number.

3220228128 is an abundant number, since it is smaller than the sum of its proper divisors (6418663008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3220228128 is a wasteful number, since it uses less digits than its factorization.

3220228128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151826 (or 151818 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 3220228128 is about 56747.0539147188. The cubic root of 3220228128 is about 1476.7111239044.

The spelling of 3220228128 in words is "three billion, two hundred twenty million, two hundred twenty-eight thousand, one hundred twenty-eight".